Ashfaq Khokhar Papers on DiSC'04 Frequent Pattern Mining on Message Passing Multiprocessor Systems A Hybrid System for Affine-Invariant Trajectory Retrieval Publications Note: Links lead to the DBLP on the Web. Ashfaq Khokhar 1 Zhihui Chen , Ashfaq Khokhar: An Improved MAC Protocol for Wireless Local Access Network. LCN 2003 : 196-202 ©2005 Association for Computing Machinery